Basal Area
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 5 benchmarks together — the OptimalRange form drives the primary score, while 4 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
An upper detrimental threshold is not supported by evidence for this natural system. The ecosystem is self-regulating through competition and natural disturbance (e.g., cyclones), with the upper value of ~63 m²/ha representing a natural saturation point on the most productive sites, not a state of declining health.
Stand basal area is the sum of the cross-sectional area of all living tree stems, measured at 1.3 meters above the ground (DBH), within a given unit of land area.
The upper natural saturation point for basal area in protected Australian tropical rainforests represents the ecosystem's self-regulating capacity through competition and disturbance.
The ecosystem self-regulates basal area through competition and natural disturbance, preventing detrimental accumulation.
Sources (1)
Estimating the relative magnitude of expected increases in soil ..., accessed July 18, 2025
View SourceSupporting Sources (4)
Additional references from the underlying research that informed this benchmark.
Lowland Rainforest of Subtropical Australia ecological community - conservation advice
View SourceLowland Rainforest of Subtropical Australia ecological community - listing advice
View SourcePatterns of basal area increment, mortality and recruitment were related to logging intensity in subtropical rainforest in Australia over 35 years | Request PDF - ResearchGate
View SourceVegetation and floristics of a lowland tropical rainforest in northeast ...
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